http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103430236-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be055db3c1a09879df07379ba969e223 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B2007-13727 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-139 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-1374 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-0908 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-1263 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-1387 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-1267 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-1263 |
| filingDate | 2012-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f40e777dc09949ff856b009028fa1a7c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d08468c29430857b01346ecbac2b296 |
| publicationDate | 2013-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103430236-A |
| titleOfInvention | Optical information device and method of controlling gap thereof |
| abstract | An optical disc device according to the present invention is provided with a laser (14) for emitting light, an optical system including a SIL (2) for forming a given sized beam spot on an optical disc (1) by using light from the laser, a detector (26) for generating a laser power detection signal by detecting the emission power of the laser, a laser power control circuit (27) for controlling the emission power of the laser by using the laser power detection signal, a detector (10) for generating a gap detection signal by detecting the gap length between the optical disc and the SIL, and a gap control circuit (15) for controlling the gap length between the optical disc and the SIL by using the gap detection signal, wherein the power control circuit has a gain crossover larger than the gain crossover of the gap control circuit. |
| priorityDate | 2011-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID7753 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419514609 |
Total number of triples: 21.